In addition, research has demonstrated that PA has a positive impact on cognitive function 3, given that athletes present faster and more efficient visuo-spatial and memory processing 4 and show greater cognitive flexibility and executive control 5, 6. High levels of daily physical activity (PA) has multiple benefits for physical health and acts as a protector against psychological (e.g., depression and anxiety) and neurodegenerative (e.g., Parkinson’s disease) illnesses 1, 2. Results are discussed by highlighting the need to use objective measures of daily physical activity, as well as the important role of the anterior cingulate cortex and personality in promoting effortful and invigorating actions to obtain rewards. Moreover, the volume of the right anterior cingulate cortex correlates positively with self-reported total physical activity. Our results show that a smaller volume of the right anterior cingulate cortex and lower scores on reward sensitivity contributed to explaining low levels of daily physical activity. Here, we test this possible role in a sample of 66 right-handed healthy young adults by studying the influence of personality and the volume of reward-related brain areas on individual differences in voluntary physical activity, objectively measured by accelerometer and subjectively self-reported by questionnaire. Animal and human studies have demonstrated that mesolimbic dopamine plays a crucial role in the involvement in voluntary physical activity. ![]() Some recent theories about the origins and maintenance of regular physical activity focus on the rewards of the properties of practicing this activity.
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